Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
230015goodexcellent11excellent
22005excellentexcellent11excellent
21005excellentexcellent11excellent
20003excellentexcellent11excellent
19003excellentexcellent11excellent
18006excellentexcellent11excellent
17008excellentexcellent11excellent
16007excellentexcellent11excellent
1500103heavily pollutedexcellent11excellent
1400125severely pollutedexcellent11excellent
13007excellentexcellent11excellent
120069moderately pollutedexcellent11excellent
1100116heavily pollutedexcellent11excellent
100038lightly pollutedexcellent11excellent
09006excellentexcellent11excellent
08005excellentexcellent11excellent
07004excellentexcellent11excellent
06003excellentexcellent11excellent
05004excellentexcellent11excellent
04004excellentexcellent11excellent
03004excellentexcellent11excellent
02005excellentexcellent11excellent
01004excellentexcellent11excellent
00003excellentexcellent11excellent